An Appraisal of Common Reweighting Methods for Nonresponse in Household Surveys Based on the Norwegian Labour Force Survey and the Statistics on Income and Living Conditions Survey

• Main Authors: Nguyen Nancy Duong, Zhang Li-Chun
• Format: Article
• Language: English
• Published: Sciendo 2020-03-01
• Series: Journal of Official Statistics
• Subjects: unit nonresponse; auxiliary variable selection: inverse propensity weighting; generalised regression estimation; doubly robust estimation
• Online Access: https://doi.org/10.2478/jos-2020-0008

Despite increasing efforts during data collection, nonresponse remains sizeable in many household surveys. Statistical adjustment is hence unavoidable. By reweighting the design, weights of the respondents are adjusted to compensate for nonresponse. However, there is no consensus on how this should be carried out in general. Theoretical comparisons are inconclusive in the literature, and the associated simulation studies involve hypothetical situations not all equally relevant to reality. In this article we evaluate the three most common reweighting approaches in practice, based on real data in Norway from the two largest household surveys in the European Statistical System. We demonstrate how cross- examination of various reweighting estimators can help inform the effectiveness of the available auxiliary variables and the choice of the weight adjustment method.